Paste applying mechanism



Dec. 8, 1931. s. c. COOKE I PASTE APPLYING MECHANISM Filed April 15, 1929 5 Sheets-Sheet 1 INVENTOR 1 L WJ Dec; 8, 1931. Q Q CQQKE 1,835,145

PASTE APPLYING MECHANISM Filed April 15, 1929 3 Sheets-Sheet 2 INVENTOR 60/?00 6. 600/116 ATTORNEY Patented Dec. 8, 1931 UNITED STATES PATENT oFF cE' GORDON c. 00031:, or mnenwoon, NEWVJ'ERSEY, ASSIGNOR, BY MESNE ASSIGNMENTS, i 'ro STA nA m-KNePr ooRPoRATIoN, a CORPORATION OF NEW YORK? PASTE APPLYING ivrncnanrsivr Y 1 fa ncatin filed April is,

with the construction of a machine for applying labels to cans and for convenience of disclosure such an embodiment of the inven tion will be more particularlydescribed to illustrate the principles of the invention. In the machine to be described cans are rolled along a runway and a label is wrapped around each can, its ends being overlapped and secured by adhesive' The present inventionfprovidejs an improved positively acting device'for applying the adhesive to the ends of the labels, the feed of the adhesive being controlled by the passing of the cans to insure the feeding of a quantity of adhesive proportioned to the number of labels applied.

The nature and objects of' the invention will be better understood from a description of a particular embodiment thereof for the purpose of which description reference should be had to the accompanying drawings forming a part hereof and in which Figure 1 is a plan view of a portion of a can labelling apparatus with a paste applying mechanism constructed in accordance with the invention applied thereto, 7

FigureQ 'isia side view of the paste applying mechanism, I

Figure 3 is a sectional view taken onthe line 111 -111 of Fig. 2, f

Figure 4 is atop plan view, I V

' Figure 5 is a plan view. partly in sectionof the nozzle by which theadhesive is ap plied, and I 1 Figure 6 is a detailcentral sectional view taken on the line VI-'-VI of Fig.5. I

The. apparatus shown comprises ways 5, 5 preferably adjustable toward andfrom each other to fitcans of different lengths which are rolled therealongv to receive labels from a stack of labels 6, shown in dot. and dash lines. In operationthe cans 7, indicated in dot and dash lines, are rolled along the con ventionally indicated ways: 5 fromleft to right in 1 as by conveyor elements conventionally indicated at 8, each can being 1929. Serial No. 355,684]

previously provided with a suliicient quantity of adhesive sothat as it rolls over the'stack of labels, the top label will be pickedup by the adhesive. As the can passes forward the label will be completely wrapped around'the can and its ends overlapped. Thepresent mventlon is concerned with the Improved apparatus for-applying adhesive to the overlapping end of the label in such positionthat when the label is wrapped completely around the can its ends willbe firmly'secured inthe overlapping relation. f

As shown, the improved apparatuscoin prises a nozzle 10, which is supplied with' adhesive from an adhesive container. :11 through afconnecting conduit 121' As bestshown in Figures land 4 the container 11.

and associated parts are adjustably mounted on the frame so'that theposition of thenoz:

zle 10 maybe varied in accordance with'the length of the labels used, For this purpose thesupporting extension 110 for the cop tainer is made slidable along the guideways lll-of the frame of the machine. The adhesive is fed positively by a gear pump'15 which is intermittently actuated underjc'on trol of the cans moving onth'e wjays,"provision being made for manually adjusting the amount of adhesive caused tobe fed by 1 each can. The shaft 16carrying one of the gears of the gear pump extends I diametricaL ly through the adhesive container and on its" projecting end; carries a ratchetl7 actuated by a pawl 18 onthe rocking arm e: The arm 19 is actuated by a cam 20 .ona' constantly rotated shaft 21, said cam engaging a'lroller 22- on the lower. end of the a m: l9. "TheeX tent and timing of the operation of the arm' 19 to actuate the adhesive pump is controlled through an adjustablemechanism which is. actuated by a lever 25 pivoted'at 26 on one of the ways 5 in position to be engagedby each passing can.

The operative connection between the can engaging lever 25 and the pump operating lever 19 comprises a detent rod 28' connected at 29 to the lever 19 an'd urged toward the left in Fig. 2 by a spring 30to move the roller 22in'to engagement with the cam 20; The movement of the rod to the left is limited by an adjustable stop 31 arranged to be positioned in any one of the holes 32 to permit a greater or less extent of movementof the lever 19 by the cam 20 each time that the roller is engaged by the cam. The detent rod 28 is held in retracted position toward the right in Fig. 2' by a pawl 33 engaging a notch 34, Fig. 4, said pawl being spring pressed toward rod retaining position by the spring 35-. The pawl 33' is arranged to be tripped to release the rod 28 each time a can engages the lever 25, the tripping connection comprising a slotted link 36 arranged to be connected to the arm 37 by clamp screw 38. In operation the cam 20 engages the roller 22 to rock the lever 19 thus rotating the ratchet wheel 17. As the rod 28 moves to the right in. Fig. 2 during the actuating movement of the lever 19, the pawl 33 will engage the notch 34 to retain the rod in this retracted position. If for a time no can passes along the runway, the pump will not be operated but if a passing can actuates the lever 25 the pawl 33 will be released and the rod 28 will move to such an extent as it is permitted by the adjustable pin 31 to permit the corresponding amount of actuation of the lever 19 by the cam. 20 upon its next revolution.

The construction of the nozzle is indicated in Figs. 5 and 6. The nozzle shown is made in two. sections 40, 41 formed. witha paste feeding slot. 42 andsuitable means are pro- Vided for assuring a substantially even flow of paste throughout the length of this slot. For the purposes of distribution obstructions 43,44,4 5 are formed within the nozzle which serve both as spacers to hold the two parts of the nozzle suitably spaced and as guides to distribute the flow of paste along the length of the slot, The two sections are held rigidly together by screws 46.

Inorder that the length of the strip of paste fed may correspond to the width of the label, slides 47 are arranged in the slot adj ustable along the length thereof to close the outer end of the slot beyond the width of the label. These slides-extend outwardly at the two sides of the nozzle andlare formed with suitable handl'es48 for convenient operation. When the slides are adjusted. they may be clamped in adjusted position by means of nuts 49 screwing onto the tapered ends of the nozzle sections 50.

The foregoing particular description is illustrative merely and is not intended as defining the limits of the invention.

We claim:

1. A label applying apparatus comprising a label support, a conveyor for carrying articles successively past said label support, an adhesive container, a nozzle connected to the adhesive container and overlying the label support to apply adhesive to labels on said: support across substantially the entire end thereof, a positively acting pump for feeding adhesive from the adhesive container to the nozzle and a tripping mechanism actuated by each article carried by the conveyor for controlling the actuation of the pump.

2. A label applying apparatus comprising a label support, an adhesive container, a nozzle connected to the adhesive container and overlying the label support to apply adhesive to labels on said support, a positively acting pump for feeding adhesive from the container tothe nozzle and means for actuating the pump comprising a stop member engaged and actuated by each article to which a label is to be applied, and means manually adjustable to determine the extent of each actuation.

3. A label applying apparatus comprising can-ways for articles to which labels are to be applied, means for continuously moving the articles along said can-ways, a label support beneath said can-ways, means for applyin g labels to successive articles carried by the can-ways, an adhesive container, a nozzle connected to said container arranged to apply adhesive across one end of each successive label, and a positively acting feed mechanism controlled by articles carried by the can-ways for feeding adhesive from the adhesive container to the nozzle.

4. A label applying apparatus comprising a support for a stack of labels, can-ways for guiding cans over the stack of labels to receive labels therefrom, means for continuously moving the cans along said can-ways an adhesive container, a nozzle having a discharge slot positioned to apply adhesive to the top label of the stack along a line adjacent one edge thereof and means controlled by the cans passing a given point on the ways for feeding, adhesive to the nozzle in an amount proportioned to the number of cans passing said point.

5. A label applying apparatus comprising a support for a stack of labels, can-ways for guiding cans over the stack of labels to receive labels therefrom, an adhesive container, a nozzle having a discharge slot positioned to apply adhesive to the top label of the stack along a line adjacent one edge thereof, a pump for feeding adhesive from the container to the nozzle, means connecting said pump with a source of power and mechanism tripped by each passing can to render said means effective.

6. In a label applying apparatus means for supporting a stack of labels, means for conveying cans successively across the top of said labels, each can being adapted to pick up a label in transit thereover, a nozzle adapted to apply adhesive across one end of each label, positive means for forcing adhesive through said nozzle, and means engaged by each can subsequent to picking up a label 4 for controlling the operation of said positive means. I

7. In a label applying apparatus means for supporting a stack of labels, means for conveying cans successively across said stack of labelsto receive labels therefrom, a nozzle adapted to apply adhesive across one end of each label as they are removed from the stack, positive means for forcing adhesive through said nozzle, said nozzle having an elongated discharge outlet, adjustable means for varying the extent of said outlet, and means engaged by said cans in transit for controlling the operation of said positive means. 7

8. In a device of the character described, a supporting structure, a paste receptacle adj ustably mounted on said structure, tracks on said structure, label-holding means between said tracks, means for discharging paste from said receptacle tolabels, pump means for conveying material from said paste receptacle to said second-mentioned means, and means operable by movement of a container through said device to control the actuation of said pump.

9. A labeling device, includlng means operable by movement of a receptacle therethrough for controlling the discharge of paste material to a label, said means including a pump and a lever actuated by movement of the receptacle to control actuation of said pump.

In testimony whereof, I have signed my name to this specification this 9th day of April, I929.

GORDON O. COOKE. 

